Barry Warsaw pushed to branch master at mailman / Mailman
Commits: d113a345 by Barry Warsaw at 2017-02-01T20:12:02-05:00 Fix signal handler exception. - - - - - f9437b07 by Barry Warsaw at 2017-02-02T14:59:36+00:00 Merge branch 'fix-signals' into 'master' Fix signal handler exception See merge request !242 - - - - - 1 changed file: - src/mailman/core/runner.py Changes: ===================================== src/mailman/core/runner.py ===================================== --- a/src/mailman/core/runner.py +++ b/src/mailman/core/runner.py @@ -92,23 +92,24 @@ class Runner: signal.SIGINT: 'SIGINT', signal.SIGUSR1: 'SIGUSR1', }.get(signum, signum) - if signum in (signal.SIGTERM, signal.SIGINT, signal.SIGUSR1): + if signum == signal.SIGHUP: + reopen() + rlog.info('%s runner caught SIGHUP. Reopening logs.', self.name) + elif signum in (signal.SIGTERM, signal.SIGINT, signal.SIGUSR1): self.stop() self.status = signum rlog.info('%s runner caught %s. Stopping.', self.name, signame) - elif signum == signal.SIGHUP: - reopen() - rlog.info('%s runner caught SIGHUP. Reopening logs.', self.name) - # As of Python 3.5, PEP 475 gets in our way. Runners with long - # time.sleep()'s in their _snooze() method (e.g. the retry runner) will - # have their system call implemented time.sleep() automatically retried - # at the C layer. The only reliable way to prevent this is to raise an - # exception in the signal handler. The standard run() method - # automatically suppresses this exception, meaning, it's caught and - # ignored, but effectively breaks the run() loop, which is just what we - # want. Runners which implement their own run() method must be - # prepared to catch RunnerInterrupts, usually also ignoring them. - raise RunnerInterrupt + # As of Python 3.5, PEP 475 gets in our way. Runners with long + # time.sleep()'s in their _snooze() method (e.g. the retry runner) + # will have their system call implemented time.sleep() + # automatically retried at the C layer. The only reliable way to + # prevent this is to raise an exception in the signal handler. The + # standard run() method automatically suppresses this exception, + # meaning, it's caught and ignored, but effectively breaks the + # run() loop, which is just what we want. Runners which implement + # their own run() method must be prepared to catch + # RunnerInterrupts, usually also ignoring them. + raise RunnerInterrupt def set_signals(self): """See `IRunner`.""" View it on GitLab: https://gitlab.com/mailman/mailman/compare/36ffac9b6721c9227f7ceb8f04f214c0c75f8e50...f9437b07e0fafff132f1c6d6567079986aed86e3
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